US3244756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum halide complex catalyst conditioning
Assignee: Phillips Petroleum Co
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Filing: 1962-01-02
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Granted: 1966-04-05
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 John T Cabbage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:14
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C13/00; C07C13/02; C07C13/16; C07C13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD FOR THE CONVERSION OF METHYLCYCLOPENTANE AND NORMAL HEXANE BY OSOMERIZATION TO CYCLOHEXANE AND ISOHEXANES WHICH COMPRISES PASSING A FEED CONTAINING METHYLCYCLOPENTANE AND NORMAL HEXANE TO A HYDROGENATION PRETREATING ZONE WHEREIN ANY BENZENE AND ANY SULFUR IS HYDROGENATED IN SAID FEED, THEN PASSING SAID FEED TO AN ISOMERIZATION WHEREIN IT IS ISOMERIZED IN THE PRESENCE OF AN ALUMINUM HALIDE-HYDROCARBON COMPLEX CATALYST, BY-PASSING A SMALL PORTION OF THE FEED AROUND SAID HYDROGENTION PRE-TREATING ZONE INTO SAID ISOMERIZATION ZONE, PASSING EFFLUENT FROM THE ISOMERIZATION ZONE TO A SETTLING ZONE WHEREIN HYDROCARBON AND CATALYST ARE SEPARATED INTO TWO PHASES, AND CONTROLLING THE AMOUNT OF BENZENE AND ANY SULFUR BY-PASSED AROUND SAID HYDROGENATION PRE-TREATING ZONE TO ACCOMPLISH A DESIRED RATE OF SETTLING IN SAID SETTLING ZONE.
Claim 2
Dependent Claim
83 words
IN THE ISOMERIZATION OR A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF METHYLCYCLOPENTANE AND NORMAL HEXANE EMPLOYING AN ALUMINUM HALIDE-HYDROCARBON COMPLEX CATALYST, THE PROCESS WHICH COMPRISES FEEDING TO A CONVERSION ZONE, TOGETHER WITH THE HYDROCARBON TO BE CONVERTED THEREIN, AT LEAST ONE OF BENZENE AND SULFUR IN AN AMOUNT IN THE APPROXIMATE RANGE OF 0.002-0.10 PERCENT BY VOLUME OF BENZENE BASED ON THE GEED, AND WHEN SULFUR IS PRESENT, THE SULFUR, CALCULATED AS SULFUR, BEING IN THE APPROXIMATE RANGE 4-20 PARTS PER MILLION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |